Just ask a question, like, 'How many cowboys does it take to operate an airliner' or 'How many vegetarians does it take to eat a meat pizza'. Something like that. The next person will answer the question.
Here's an example, one that I made off of Seven of Nine's question in the Ten Forward Lounge.
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How many programmers does it take to buy ice cream?
It takes 9 programmers to buy ice cream:
1 to calculate the amount of ice cream required.
1 to program a shopping cart the right size for the carton.
1 to program a script to open and close the freezer door.
1 to program a MOD for different Ice Cream flavours.
1 to program a script to easily select and grab Ice Cream cartons.
1 to calculate a path through the store for the shopping cart.
1 to program a MOD for self-checkout, including bar code scanning and credit card slider.
1 to program a bag the right size for the carton.
1 to program an extension to the car so that all of them, including the Ice Cream carton, will fit.
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And now, for the first question!
How many midgets does it take to dunk a basketball on an 8-foot hoop?











